Cut-off for oil burners



Aug, 119, 1924. 1,505,813

A. G. SLOCUM CUT-OFF FOR OIL BURNERS Filed March 23 192;

gvwwntoz Patented Aug. 19, 1 .924.

NITED STATES ARTHUR G. SLOCUM, QF ENSIGN, KANSA S.

CUT-OFF FOR OIL BUB/REES.

Application filed March 23, 1923. Serial No. 627,141.

To all whom it may concern:

Be it own that l, ARTHUR G. SLooUM, a citizen of the United States, residin at Ensign, in the county of Gray and tate of Kansas, have invented certain new and useful lmprovements in Cut-03s for Oil Burners, of which the following is a specification.

This invention relates to a cut-oil for oil burners and particularly to a construction adapted to be automatically operated by the overflow from a burner pan.

lin rior constructions of cut-ofi devices of this character dificulty has been experienced is securing a positive operation of the cut-ofi valve and an accurate and prompt release of the closing means for this valve {as the overflowing liquid collects in the receptacle for operating a trip mechanism.

This invention therelore seeks to secure a simple and ecient construction by which the cut-oh valve is positively operated by a tension means and is normally sustained in inoperative position by a trip lever having an v vention applied.

igl igure 2 is an enlarged top plan of the cut-old and trip lever on the line 2-2 of Figure l.

3 Figure 3 is a detail perspective of the supporting plug for the tri lever; and

Figure d 15 a detail e ovation of the free end of the valve lever and cooperating trip lever.

like numerals refer to like parts on the several figures of the drawings.

llhe numeral designates an oil burner which may be of any desired construction or configuration, for instance of the tyw shown in my co-pending a plication filed February 9th, 1923, Serial umber 618,001, which involves a retort 11 disposed above the burner and a connecting support 12 communicating therewith Surrounding the burner is the usual drip or overflow pan 13 adapted to retain suficient oil to be used for priming or starting purposes. Extending through the bottom of this pan is an overflow pipe 14: the upper end of which is of suflicient height above the bottom of the pan to always retain therein a body of oil for starting purposes.

As showing an eihcient and simple method of supporting this invention l have connected a T-coupling 15 with the pipe section 16 leadin to the burner and laterally from this coup ing the feed pipe 17 is extended and provided with a cut-ofi cock or valve 18. F or the purpose of actuating this valve a lever 19 is connected to the stem thereof and extends substantially parallel with the feed pipe toward the coupling 15. This lever is maintained under tension in any desired manner, for instance by means of an adjustable weight 20 slidingly mounted thereon. By changing the position of this weight relative to the free end of the lever the tension necessary to positively actuate the valve may be definitely determined.

F or the purpose of sustaining the lever 19 in its raised or inoperative position so that a continued feed of fuel to the burner is maintained, l have provided a trip-lever 21 which is formed with an angular or lateral arm 22 and pivotally mounted at 23 upon a support 24 carried by the T-coupling 15. This support may constitute a plug member, as indicated in Figure 3, having a threaded portion 25 at its upper end to enter the coupling and provided with the pivoting lug 26 at its lower portion. Above the lug as a stop member 27 is provided and disposed in the path of travel of the trip lever 21 so as to limit the movement of this lever away from the end of the valve lever 19. a The angular arm 22 of the trip lever carries a supportin which is disposed beneath the outlet from the overflow 14. This receptacle may be adjustably mounted upon the arm by means of a clamping screw 30, as shown in Figure 1, and such adjustment determines the amount of liquid necessary in the receptacle 29 to withdraw the trip lever from engagement with the valve lever. 4 Y

For the purpose of facilitating the movement of these levers upon each other the valve lever is preferably formed at its outer end with a curved seat 31, the inner portion of which terminates in a stop 32 while the frame 28 for a receptacle 29 free end 33 of the trip lever is curved to correspond with said seat. In setting the arts, the trip lever may therefore be p into contact with the stop 32 and when said lever is actuated it travels upon the curved face of the seat which offers the minimum of resistance-and renders the device sensitive in its action.

In the operation of the invention the feed ,of oil to the burner is maintained and may be normally regulated in any desired man- If there IS an over or excess feed of oil to the burner it will collect in the pan and the overflbw therefore passes to the re-. ceptacle carried by the actuating arm of the trip lever, which swin s said lever from beneath the tensioned va ve lever and the latter is closed by tension or gravity so as to completely cut off the flow of .011 until the parts are again restored. In this construction the receptacle may be readily removed from the trip lever and emptied when it is desired to reset this lever beneath the valve lever and the support for the receptacle by. its adjustment will determine the body of liquid therein necessary to swing the trip lever in its releasing action, and the degree of this movement is limited b the stop member so as to prevent a disc arge or dis lacement of the liquid in the receptac e., The invention presents a very simple and eflicient construction and arrangement, of the several parts adapted to be readily appliedto a burner by a single coupling member and secures a positive and definite operation of the valve and trip lever under all conditions of use.

What'I claim is: p 1. An oil burner provided with. an over- -and having a vertical arm, a feed pipe valve for automatically closing the 2. An oil burner provided with an overn flow pan, a coupling secured centrally to said burner, a valved feed pipe at one side of said coupling, a supportln plu mounted in said coupling and provide 'wit a'pivot, an

angular trip lever disposed upon said pivot same and normally supported at its free end by said arm, and a receptacle carried by the opposite an lar arm of the trip beneath ver from the v said pan an adapted to receive liquid .there from to actuate the trip lever andrrelease' the valve lever for closing the valve.

3. An oil burner provided with an overflow pan, a T-coupling secured to said burn er, a valved feed coupling, a supportln plug mounted in said coupling and provi ed with apivot, an angular trip lever disposed uponsaid pivot,

a lever from the valve in said feed pipe sup-.

ported by said trip lever, and a stop provided upon said plug to limit the movement of the trip lever away from the valve lever. In testimony whereof I aflix my signature.

ARTHUR, G. SLOGUM.

pipe at one side of said 

